90+70+20=180

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Solution for 90+70+20=180 equation: 


Simplifying
90 + 70 + 20 = 180

Combine like terms: 90 + 70 = 160
160 + 20 = 180

Combine like terms: 160 + 20 = 180
180 = 180

Add '-180' to each side of the equation.
180 + -180 = 180 + -180

Combine like terms: 180 + -180 = 0
0 = 180 + -180

Combine like terms: 180 + -180 = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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